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>Why doesn't my widget (e.g. progressbar)
update? [GTK 2.x]</TITLE
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>Why doesn't my widget (e.g. progressbar)
update? <I
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>[GTK 2.x]</I
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>You are probably doing all the changes within a function without
returning control to <TT
CLASS="LITERAL"
>gtk_main()</TT
>. This may
be the case if you do some lengthy calculation in your
code. Most drawing updates are only placed on a queue, which
is processed within <TT
CLASS="LITERAL"
>gtk_main()</TT
>. You can force the
drawing queue to be processed using something like:</P
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>while (g_main_context_iteration(NULL, FALSE));</PRE
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>inside you're function that changes the widget.</P
><P
>What the above snippet does is run all pending events
and high priority idle functions, then return immediately
(the drawing is done in a high priority idle function).</P
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